Electromagnetic selecting apparatus.



G. L. ANDERS. nmcmomenmc SELECTING APPARATUS.

APPLICATION FILED NOV, 7, 1907. 1,124,192, I Patented Jam 5,1915.

2 SHEETS-SHEET 1.

l lNVENTOR, QEQRGE LEE ANDERs,

Attornegs G. L. ANDBRS.

mncmomeumo SELECTING APPARATUS.

APPLIQATION FILED NOV. 7, 1907. 1 1 24 1 92, Patented Jan. 5, 1915,

2 8HEETSSHEBT 2.

)NVENTQR WITNESSE s; QEQRQE LEE ANDERfi.

Att'orne s. Y

srnrns raanavr GEORGE LEE ANDERS, OF SYDENHAM, LONDON, ENGLAND, ASSIGNOR OF ONE-HALE T0 WALTI-IER KGTTGEN, OF BERLIN, GER-MANY.

ELECTROMAGNETIC SELECTING APPARATUS.

Application filed November 7, 1907.

To all whom it may concern:

Be it known that I, GEORGE LEE Axnnns, a subject of the King of Great Britain, and a resident of Sydenham, London, England, have invented certain new and useful Improvements in Electromagnetic Selecting Apparatus, of which the following is aspecification.

My invention relates to the reception of electric impulses, for the purpose of telegraphic communication, or of operating or governing various parts of distant mechanism selectively. By employing electric energy of different characteristics, for instance as to direction, I am enabled to obtain a great variety of impulses, as will appear from the detailed description of the example of my i vention illustrated in the accompanying drawings. These impulses are adapted to give different movements and positions to the selective member of the receiver, and these movements and positions may be either utilized themselves as signals or elements of signals (say according to the Morse code), or the selective member may according to its several positions, affectdifferent circuits to govern the operation of other devices.

Reference is to be had to the accompanying drawings, in which- Figure 1 is a top view of the receiver; Figs. 2 and 3 are vertical sections of the receiver, taken at right angles to each other; Fig. 4: is a perspective view of the receiver, with parts broken away; and Fig. 5 is a partial plan view illustrating an arrangement of contacts for closing local circuits.

The specific receiver illustrated comprises four elcctromagnets 1, 2, 3, 4:, of which 1 and 2 form a pair and 3 and at another pair, the plane of one pair being at a right angle to the plane of the other pair. Each pair may be said to form a horseshoe magnet. The soft iron cores 5, 6, 7, 8 are surrounded by coils 9, 10, 11, 12. The opposite cores 5, 6 are secured at their lower ends by screws 14, 15 to a soft iron plate 13, while the other cores 7, 8 are in magnetic communication with a plate of soft iron 16 located above them, being secured thereto by screws 17, 18. Pole pieces 19, 20, projecting toward the centeror axis of the receiver, and provided with ends bent at right angles, are secured to the upper ends of the cores 5, 6. Insulating distance pieces 21, 22

Specification of Letters IEatent.

Patented Jan. 5, 1915..

Serial No. 401,122.

are located between the pole pieces 19, 20 and the plate 16, andscrews 24, 25 serve to hold together the cores 5, 6, pole pieces 19, 20, distance pieces 21, 22, and top plate 16. A brass plate 23 is secured to the iron plate 16 by means of screws 24. The cores 7, 8 are provided at their lower ends with pole pieces 26, 27 (similar to 19, 20), and screws 30, 31 serve to hold together the cores 7, 8, pole pieces 26, 27, insulating distance pieces 28, 29 and bottom iron plate 13. The coils 9, 10 of the electromagnets 1, 2 are connected in series in such a manner as to give opposite polarities to the pole pieces 19, 20 when the said magnets are energized. A similar connection is employed for the coils 11, 12 of the magnets 3, 4, so as to give op-' posite polarities to the pole pieces 26, 27. The pole pieces 19, 20, 26, 27 are located around the armature, the pole pieces 19, 20 being at points 90 distant from the position of the other pole pieces 26, 27. The pole pieces 19, 26, for instance, may therefore be described as circumferentially adjacent. In the central space surrounded by the four electromagnets is arranged a sleeve or tube 32 of nonmagnetic material (shown best in Fig. 4) which is let into the plates 13, 16 and 23, perforated for this purpose. lVithin this sleeve is arranged axially an armature 37 polarized so that one end is a south pole and the other a north pole. The armature is mounted in gimbal bearings midway between its ends. Thus the sleeve 32 carries pins 32 in the plane passing through the axes of the cores 7 and 8, and on these pins is mounted to swing a ring 32 carrying pins 32 in the plane passing through the axes of the cores 5 and 6. The armature 37 is carried by the pins 32 and can thus swing about the axis of said pins, and can also further swing with the pins 32 and the ring 32*, about the axis of the pins 32 the two axes being at right angles to each other. The sleeve 32 is provided with openings 35, 36, 33, 3% located opposite the pol'e pieces 19, 20, 26, 27 respectively, the poles or ends of the armature 37 extending between the respective pairs of pole pieces. The armature is normally kept in its central or axial position by a spring 37 the upper end of which is bent to form a hook 38 engaging an eye 39 at the lower end of the armature. The lower end of the spring I is provided with an eye 40 through which passes a hook 41 at the upper end of a pin 42 arranged axially and passing loosely through a screw 43 so that the screw can turn relatively to the pin. The lower end of the pin 42 has a head 45 larger than the bore of the screw 43, thus preventing separation of the pin from the screw. The screw 43 is adjustably carried by a bracket 44, so that the tension of the spring 37 a can be varied without subjecting it to torsion. The upper end of the armature carries an, axial pin 46 provided with a loose disk 47 held in position by a nut 48 and adapted to roll on the inside of the sleeve 32, thus serving as a guide for the armature 37 after it has been moved to one side so as to bring the disk 48 against the sleeve.

On the top plate 23, adjacent to the open ing in which the sleeve 32 is received, a graduation or scale 49 is provided. The movements of the armature to the (twentyfour) different points of this scale may be utilized in various ways. For instance the pin 46 may be considered a pointer to indicate various signs or letters by its position on the scale 49, according to any predetermined code or arrangement. Or the pin 46 may serve to close (twenty-four) different local circuits according to its position, such local circuits then operating signaling devices or other apparatus. For instance, Fig. 5 shows an arrangement of twenty-four contacts, of which there would be eight (designated as K) apart, in positions corresponding to the points 7) of the graduations of the scale 49, and sixteen (designated as H) in intermediate positions corresponding to the points a, c of the said scale 49. Said I one of the contacts K'or M, as by wires 3 contacts are carried, sayby the plate 23, and the inner ends of the several contact members K and M are adapted to be engaged by the upper end of the armature 37, to close a local circuit. One terminal of each local circuit would be connected with the armature 37, as by a wire 37, and the other with 7 The spring 37 constitutes a directing device tending to bring the armature 37 to a normal position in which its longitudinal axis coincides with the central axis around which the pole pieces 19, 20, 26, 27 are grouped; in this normal position the armature engages none of the contacts, but is central relatively thereto. If only one pair of magnets (say 1 and 2) be energized, the armature 37 will be attracted in a straight line toward one magnet or the other, according to the direction of the energizing current. Four different fundamental positions will thus result, according as to whichpair of magnets is energized and according to the direction of the current. If both pairs of magnets are energized at the same time, the armature end will move in a straight direction, in a plane bisecting the angle of 90 intervening between adjacent magnets (see Fig. 1). According to the direction of the currents energizing the two pairs of magnets, four diilerent combinations are possible, producing four new positions of the armature, each of these positions being at 45 from two of the fundamental positions first referred to. The eight positions thus resulting from the energizing of single pair of magnets, or from the simultaneous energizing of both pairs of magnets, are indicated by theletters Z) in Fig. 1, and, as stated above, correspond to the eight contacts K (see Fig. If the two pairs of magnets 1. 2 and 3, 4 respectively are energized at the same time, but by currents of unequal strength, the end of the armature 37 will be brought to one or another of the intermediate positions at which the contacts M are located (points a and c of the graduation 49), according to the direction of the current in the respective magnets, and also depending on whether the current in 1, 2 is stronger than the current in 3, 4, or vice-versa. When the plate L is superimposed on the plate 23, the scale 49 becomes invisible (unless transparent material is used for the plate L), but even with the scale 49 covered, the end of the armature 37 would serve as a pointer, the contacts K, M, in this case performing the same office as the graduations of the scale 49, in fact, the twenty-four contacts K, M would constitute a scale cooperating with the pointer or end of the armature 37, in the same manner as the scale 49.

I desire it to be understood that various modifications may be made without departing from the nature of my invention as set forth in the appended claims.

I claim:

1. In a receiving device for electro-magnetic selecting apparatus, a plurality of electrically independent electromagnets, an armature common to all of said electromagnets, and a support for said armature permitting universal movement thereof.

2. In a receiving device for electro-magnetic selecting apparatus, a plurality of pairs of electromagnets whose poles are disposed at equal distances from a central axis, an armature common to all of said electromagnets and normally disposed so that its axis will coincide with said central axis, and a support for said armature permitting universal movement thereof.

3. In a receiving device for electro-magnetic selecting apparatus, an armature pivoted at its central portion, and a plurality of electromagnets some of which have their poles in a plane transverse to the armature at one side of its pivot, while the other poles are in a plane transverse to the armature at the other side of its pivot.

4. In a receiving device for electro-magnetic selecting apparatus, an armature pivoted at its central portion, a plurality of electromagnets whose poles are located at equal distances from the normal position of the armature in a plane transverse to the armature at one side of its pivot, and a plurality of electromagnets whose poles are located at equal distances from the normal position of the armature in a plane transverse to the armature at the other side of its pivot.

5. In a receiving device for electro-mag netic selecting apparatus, a plurality of electromagnets, an armature common to them, a tube containing said armature and limiting its movement, and means for supporting the armature universally within the said tube.

6. In a receiving device for electro-magnetic selecting apparatus, a pivoted armature, a plurality of electromagnets whose poles are on opposite sides of the armature pivot, and a tube wherein said armature is movably contained and having openings opposite the respective magnet poles.

7. In a receiving device for electromagnetic selecting apparatus, a plurality of electromagnets, an armature common to all of said electromagnets, a gimbal support for said armature midway of its length, and a spring connected with one end of the armature and restraining the same in all directions.

8. In a receiving device for electro-magnetic selecting apparatus, a plurality of pairs of electromagnets whose poles are disposed at equal distances from a central axis, an armature common to all of said electromagnets and normally disposed so that its axis will coincide with said central axis, a support for said armature permitting universal movement thereof, a pointer connected with the armature, and a scale on which said pointer is adapted to indicate.

9. In a receiving device for electro-magnetic selecting apparatus, an armature, a gimbal bearing supporting said armature midway of its length, and four electromagnets whose poles are arranged in pairs, the poles of one pair being in an axial plane perpendicular to the axial plane passing through the poles of the other pair and the normal or central position of the armature.

10. In a receiving device for electro-magnetic selecting apparatus, a plurality of electrically independent electromagnets whose poles are disposed at equal distances from a central axis, an armature common to said electromagnets, a support for said armature permitting universal movement thereof, and a directing device tending to bring said armature to a normal position in which its longitudinal axis coincides with said central axis.

11. In a receiving device for electro-magnetic selecting apparatus, a plurality of electromagnets whose poles are disposed at equal distances from a central axis, an armature common to said electromagnets, a support for said armature permitting uni versal movement thereof, and a spring exerting a pull lengthwise of the armature and thus tending to bring it to a normal position in which its longitudinal axis coincides with said central axis.

12. In a receiving device for electromagnetic selecting apparatus, a universally supported armature, a plurality of contacts adapted to be engaged by said armature, a directing device tending to bring said armature to a normal position in which it en gages none of said contacts but is central relatively to them, and a plurality of elec tromagnets arranged to influence said an mature.

13. In a receiving device for electro-mag netic selecting apparatus, a universally sup ported armature, a plurality of contacts arranged around the armature and adapted to be engaged by it, a directing device tending to bring said armature to a normal position in which it engages none of said contacts but is central relatively to them, and a plurality of electromagnets arranged to move said armature in directions at an angle to each other.

14. In a receiving device for electro-magnetic selecting apparatus, a universally supported armature, a plurality of electrically independent electromagnets having poles located around said armature, whereby the armature will move in difierent radial directions according as only one or both of two circumferentially adjacent poles are energized, and a plurality of contacts, some arranged to be engaged by the armature when it moves in response to the energizing of a single electromagnet, and others located in the path followed by the armature upon the energizing of two electromagnets.

15. In a receiving device for electro-magnetic selecting apparatus, the combination with a polarized armature, and four electromagnets disposed around said armature, of means for simultaneously energizing one of the pairs of opposite electro-magnets with the same polarity and the other one of the pairs of opposite electro-magnets with different polarities.

16. In a receiving device for electro-magnetic selecting apparatus, the combination with an armature, and an electromagnet, of a tube inclosing said armature and providing a rocking support therefor and having an opening adjacent to the pole of said electromagnet and a pole shoe on said electromagnet projecting through said opening to a point near the armature.

17. In a receiving device for electro-magnetic selecting apparatus, the combination with an armature having a universal support at a point intermediate between its ends, of a plurality of electromagnets adapted to act on opposite ends of said armature.

18. In a receiving device for electro-magnetic selecting apparatus, the combination of an armature having at a point interme diate between its ends a support permitting universal movement of the armature, two horse-shoe electromagnets disposed with their planes substantially at a right angle to each other and acting with their poles on opposite ends of said armature.

19. In a receiving device for electromagnetic selecting apparatus, the combination with a polarized armature having a rocking support at a point intermediate between its ends, of a plurality of electromagnets adapted to act on opposite ends of said armature, and means for selectively energizing said electromagnets so as to attract or repel the cooperating poles of the armature.

20. In a receiving device for electro-magnetic selecting apparatus, an armature pivoted universally midway of its length, and a plurality of electromagnets arranged to exert their action on opposite ends of the armature.

21. In a receiving device for electro-magnetic selecting apparatus, an armature supported so as to be capable of universal movement, and a plurality of electrically independent electromagnets arranged to exert their magnetic action on said armature in different directions.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE LEE ANDERS.

Witnesses HENRY HASPER, IVOLDEMAP. HAUPT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

